Baker s oven



(No Model.) I 7 3 Sheets-Sheet 1.. E. A. G. PETERSEN. BAKERS OVEN.

Patented Oct. 27, 1891.

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(No Model.) 3 Sheets-Sheet 2.

E. A. G. PETERSEN.

BAKER'S OVEN.

No. 462,158 Patented 001:. 2'7, 1891.

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(No Model.) 3 Sheets-Sheet 3.

E. A. O. PETERSEN. BAKEES OVEN.

No. 462,158. Patented Oct. 2'7, 1891.

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UNITED STATES PATENT OFFICE.

EDIVARD A. O. PETERSEN, OF CHICAGO, ILLINOIS.

BAKERS OVEN.

SPECIFICATION forming part of Letters Patent No. 462,158, dated October 27, 1891.

Application filed December 13, 1890. Serial No. 374.568. (No model.)

To all whom it may concern:

' Be it known that I, EDWARD A. C. PETER- SEN, of the city of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Bakers Ovens, of which the following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming part of this specification.

My invention relates to certain improvements in bakers ovens; and my invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a vertical longitudinal section of a bakers oven on the line II,Fig. II, illustrating my invention. Fig. II is a vertical transverse section on the line II II, Fig.- I, showing the flue-outlets into the chamber. Fig. 111 is a horizontal section on the line III the line IV IV, Fig. I. Fig. V is a horizontal section on the line V V, Fig. I.

Referring to the drawings, 1 represents the fire-box of the oven; 2 2, the circulating fines, and 3 the baking-chamber.

My present invention does not relate to the construction or arrangement of these parts, which. may be varied without affecting the features to which my invention does relate, and I therefore deem it unnecessary to give a minute description of the parts referred to, but will say that they may be arranged or formed in accordance with the construction shown and described in mypatent, No. 363,416, dated May 24, 1887, or they may be, otherwise arranged or constructed.

In ovens of this general character difficulty has been experienced in the stopping up or clogging of the tines by soot and ashes accumulating therein, and to avoid this difficulty I have conceived the idea of locating a chamber 5 at the rear of the oven, with which the fines 2 communicate, as shown at b. The chamber may, if desired, be provided with a door 7, through which the accumulated matter may be removed. This chamber serves to collect the ashes and soot which are precipitated therein as the heat and products of combustion circulate from the tines 2 into the Fig. IVis a horizontal section on chamber and back into the tines again, and any soot and ashes that collect. in the flues can be easily and-quick] y forced by a suitable tool into the chamber, from which they may be removed. Another advantage of this chamher is that it prevents the o'verheatingof the inner end or parts of the baking-chamber, for, as will be plainly understood, the overheating of the chamber caused by the heat and products of combustion impinging against the inner ends of the tines in the ordinary construction of bakers ovens will not in this construction exist, for the reason that the chamber 5 forms a dead -air space, which serves to keep down the temperature at the inner or back part of the oven.

My invention further relates to a device for preventing the heat and steam of the baking-chamber from escaping around the circulating fines or tubes 2, which pass through the baking-chamber, as shown, should a space between the brick setting and such tlues be caused by the settling or drying of the brick and mortar. This consists of a metal plate 8, preferably made in two parts with overlapping edges, as shown, and which is placed in the back wall. around the lines, so that the settling of the brick away from the tlues will not leave a space for the passage of the heat and steam from the baking-chamber.

I claim as my invention' 1. In a bakers oven, in combination with the circulating-tines, a dead-air chamber 5, substantially as and for the purpose set forth.

2. In a bakers oven, in combination with the circulating-fines, a deada-ir chamber 5, located at the backof the oven and with which the fines communicate, substantially as and for the purpose set forth.

In a bakers oven,the combination, with the baking-chamber and the circulating-fines passing through the chamber, of the plates 8, surrounding the fines, substantially as and for the purpose set forth.

EDWARD A. G. PETERSEN. In presence of-- I E. S. KNIGHT, BENJN. A. KNIGHT. 

